Identification | More | [Name]
Ferrous oxalate dihydrate | [CAS]
6047-25-2 | [Synonyms]
FERROUS OXALATE 2H2O FERROUS OXALATE DIHYDRATE IRON(II) OXALATE IRON(II) OXALATE DIHYDRATE Ferrousoxalatedihydrate(α-form) Ferrox Ironprotoxalate Ironoxalatedihydrateminyellowpowder Iron(Ⅱ) oxalate Iron(Ⅱ)oxalate dihydrate Iron(II)oxalatedihydrate,99% IRON(II) OXALATE 2 H2O Iron(II)oxalatedihydrate,min.95% iron(ii) oxalate dihydrate, puratronic FERROUSOXALATE,PURIFIED Eisen(II)-oxalat-dihydrat Iron(II) oxalate dihydrate, Puratronic(R), 99.999% (metals basis) Iron(II) oxalate dihydrate, Puratronic, 99.999% (metals basis) Iron(II) oxalate dihydrate, min. 95% | [EINECS(EC#)]
208-217-4 | [Molecular Formula]
C2H4FeO6 | [MDL Number]
MFCD00150040 | [Molecular Weight]
179.89 | [MOL File]
6047-25-2.mol |
Chemical Properties | Back Directory | [Appearance]
yellow powder | [Melting point ]
190°C (dec.) | [density ]
2.28 g/mL at 25 °C(lit.)
| [solubility ]
soluble in acid solutions | [form ]
Powder | [color ]
yellow | [Specific Gravity]
2.28 | [Stability:]
Stable. Hygroscopic. Incompatible with strong oxidizing agents. | [Water Solubility ]
Soluble in water. Insoluble in acetic acid. | [Sensitive ]
Hygroscopic | [BRN ]
3757620 | [Solubility Product Constant (Ksp)]
pKsp: 6.5 | [Exposure limits]
ACGIH: TWA 1 mg/m3 NIOSH: TWA 1 mg/m3 | [CAS DataBase Reference]
6047-25-2(CAS DataBase Reference) | [EPA Substance Registry System]
6047-25-2(EPA Substance) |
Safety Data | Back Directory | [Hazard Codes ]
Xn | [Risk Statements ]
R21/22:Harmful in contact with skin and if swallowed . | [Safety Statements ]
S24/25:Avoid contact with skin and eyes . | [RIDADR ]
3288 | [WGK Germany ]
1
| [TSCA ]
Yes | [HazardClass ]
6.1 | [PackingGroup ]
III |
Hazard Information | Back Directory | [Description]
Iron(II) oxalate, FeC204.2H20, is precipitated as yellow crystals from solutions
containing iron(II) and oxalate ions ; in the presence of excess alkali metal oxalate, however,
soluble oxalato complexes M2[Fe(C2O4)2] are formed which can be precipitated by the
addition of alcohol. The oxalate is paramagnetic with μeff= 5·2 B.M. at room temperature. | [Chemical Properties]
yellow powder
Ferrous oxalate, or iron(II) oxalate, is a chemical compound consisting of one iron(II) ion (Fe2) and one oxalate ion (C2O4(2−)). It has the chemical formula FeC2O4. Iron(II) oxalate is more commonly encountered as the dihydrate, FeC2O4·2H2O, CAS # 6047-25-2. Its crystal structure consists of chains of oxalate-bridged iron atoms, capped by water molecules. When heated, it dehydrates and decomposes into carbon dioxide, carbon monoxide, iron oxides and pyrophoric black iron.
| [Uses]
It is used as photographic developer for silver bromide-gelatin plates. It imparts greenish-brown tint to optical glass (sunglasses, windshields, railroad car windows), for decorative glassware, pigment for plastics, paints and lacquers. It acts as reagent. | [Uses]
It is used as photographic developer for silver bromide-gelatin plates. It imparts greenish-brown tint to optical glass (sunglasses, windshields, railroad car windows), for decorative glassware, pigment for plastics, paints and lacquers. It acts as reagent. |
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